orthognathous adjective. [ɔ:Ɵǝg'neɪƟǝs, ɔ:'ƟɒgnǝƟǝs] M19.
[from ORTHO- + Greek gnathos jaw + -OUS.]
Having straight jaws; having the jaws not projecting beyond a vertical line drawn from the forehead, and a facial angle of about 90 degrees. Cf. PROGNATHOUS.

■ orthognathic [ɔ:Ɵǝg'naƟɪk] adjective = ORTHOGNATHOUS M19.

■ orthognathism noun orthognathous condition L19.

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